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Tree-piece forged steel valve, it features excellent performance, high reliability, beautiful outlook, wide applications, reasonable price and so on. Large pivot design ensure the right location under the high pressure .And low operation torque makes the valve switch more easier. The valve has input and output double seal function.Full bore design according to the demands: the full or reduced bore can be chose. And the full bore valve has the diameter of channel completely equal to the inner diameter of the pipe to reduce flow resistance, which facilitates piping operation.Anti-static design: chrome and nickel stainless steel spring and small ball are adopted to make electro conductive among ball, stem and body to completely release static.Concavo-convex type quiet seal and fire-proof design: involutive end of body adopts concavo-convex type quiet seal to prevent seal material fails for cold fluid or alluvion of the medium, and stainless steel with graphite spiral wound gasket has all fireproof function.Locking device design to prevent the valve from being operated by error, the flat-head stem is used to set locking hole at the switch position, and can ensure that the valve is at the correct position.Blow off-proof guided type stem is installed from the lower internal part of stem. And seal ring seals, which can efficiently prevent stem blow off or leakage.Unique seat structure: with many years experience in ball valve manufacturing to design seats, they have good seal performance and small operational torque. And many seat materials can be used under different temperatures.Fire-proof safety design: a proof-fire seal lip can be precisely processed inside of the seat-supported face. And when fire happens to damage seat, the metal-to-metal seal can be formed between proof-fire seal lip and ball. The packing gasket of valve all adopts high temperature proof graphite materials which can ensure that there is no leakage when the fire happens.
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